PE45450A-X

Overview

The PE45450A-X is a signal conditioning power limiter manufactured by pSemi. It operates within a frequency range of 9 kHz to 6 GHz and supports a maximum power handling capacity of 50 W. The component is housed in a green, 12-lead 3 × 3 mm QFN package with an exposed pad. It utilizes surface-mount technology for board installation. The device is designed for RF applications requiring power limiting functionality across a wide bandwidth.

Feature Summary

• Provides power limiting protection for RF signals
• Operates across a broad frequency spectrum from 9 kHz to 6 GHz
• Handles up to 50 W of power
• Utilizes a compact 12-lead 3x3 mm QFN package

Applications

• RF signal conditioning systems
• Power limiting in wireless communication infrastructure
• Test and measurement equipment requiring signal protection

Procurement Notes

Verify the current lifecycle status before procurement, as availability may be limited due to end-of-life considerations. Confirm that the 12-lead 3x3 mm QFN package dimensions align with the target PCB footprint. Ensure thermal management strategies account for the exposed pad design to maintain reliability under high-power conditions. Validate that the 50W power rating meets the specific application requirements without exceeding safe operating limits.

Selection Notes

Select this component when a wideband power limiter is required for frequencies extending up to 6 GHz. The 50W power handling capability makes it suitable for higher power RF chains compared to lower-rated limiters. Consider the small form factor of the 3x3 mm QFN package for space-constrained designs. Ensure the system architecture can accommodate the specific lead configuration and thermal dissipation needs of the exposed pad QFN housing.

Part Context

The PE45450A-X belongs to the PE45450 series of power limiters from pSemi. It is part of a family of signal conditioning devices designed for RF applications. The 'A-X' suffix typically denotes specific packaging or revision details within the product line. This component serves as a protective element in RF paths, preventing damage to downstream components from excessive signal power levels.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official pSemi resources for potential cross-references or next-generation replacements.